TRICK TO MULTIPLY TWO DIGIT NUMBERS

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Here is a trick to multiply two digit number in a single step.Consider the example:

12*34

The first step is to multiply the last digit of the two numbers(ie: 2*4=8) to obtain the last digit of the result.

In the second step cross multiply the digits in the number and add it(ie:(1*4)+(2*3)=10).Now place the 0 in the second position of the result from the last and 1 will be kept as carry.

In the third step,multiply the first digit of the two number and add to carry(if any exist)(ie:(1*3)+1(carry)=4).

So the final answer is 408.

At first this method seems to take more time than the conventional method but once we train our mind to do this calculation it will be a best method.

 
This Post has 8 Comments Add your own!
Abhinav Viswambharan - October 4, 2008 at 10:14 AM

Vedic Mathematics, rit?

I had forgotten this trick for quite a long time. Thanks for getting me refreshed with it. :)

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